baber/WOPTO huggingface dataset:
Patent GB-981004-A (GB)
Title: A refrigerating and defrosting system
Inventor: KOCHER ERICH JOHN
IPC: F25D21/12
Filed: 1963-09-21
Abstract: 981,004. Defrosting. VILTER MANUFACTURING CORPORATION. Sept. 21, 1963, No. 37206/63. Heading F4H. In a refrigeration system in which a fan 16 circulates air from a space 6 to be cooled through a housing 9 containing the evaporator 10 of a compression condensation system, the evaporator is defrosted by passing air over it from the exterior of the space 6. In normal operation dampers 31 and 32 are in their Fig. 1 positions closing ducts 22 and 24 leading to the exterior of the space 6. When defrosting is required, the dampers are swung through 90 degrees by a motor 33 to close openings 17, 27, the fan 16 is stopped and a blower 21 is started to supply relatively warm air through the duct 22 to the evaporator, return air flowing through the duct 24. Water from the evaporator flows through a drain 28, duct 24 and a waste pipe 29. A number of spaces 6 may be provided, each having their own cooling unit 9 but served with defrosting air from a common blower, Figs. 3 and 4 (not shown). The refrigeration and defrosting systems may be controlled manually or automatically, Fig. 5 (not shown). In the automatic system the refrigerant supply to each evaporator is controlled by valves 45 and 46. At predetermined intervals a defrost timer associated with each space 6 down the valves 45 and 46 and operates the motor 33 to turn the dampers 31 and 32 to their defrost positions. A switch associated with the motor 33 stops the fan 16 and turns on the blower 21. At the end of the defrost period the timer returns the components to their normal operating states. The valves 45 and 46 are also under the control of a thermostat in the corresponding space 6.
Patent GB-336857-A (GB)
Title: Method and apparatus for freeing and extracting castings from sand molds
IPC: B22D13/10
Filed: 1929-12-05
Abstract: 336,857. Camerota, L. A. Dec. 5, 1929. Cleaning, externally; cleaning internally, rotary appliances for. - A casting is removed from a sand mould and cleaned externally by applying relative rotary and longitudinal movement between flask and casting. The machine shown in Figs. 1 and 3 is for removing pipes from centrifugal moulds 2 two at a time. The moulds are advanced on rails 35 to a frame 1, while this is in horizontal position, and are supported by a notched plate 29. The frame is then tilted, into the position shown, by a device 7, aligning rollers 32 being pushed up by a fixed abutment 34. Jaws 11 of chucks 5, which can be rotated in either direction by motors 9, are then closed on the flasks by an hydraulic cylinder 10. Mandrels 12 are then advanced on a truck 6 by an hydraulic cylinder 22 and rope gearing 21, 17 to enter the end of the casting. A jaw 13 of the mandrel is then forced out by an hydraulic cylinder 25 to grip the casting and the flask is rotated, if desired first in one and then in the other direction. While the flask is still rotating the truck 6 is withdrawn and as it approaches its right-hand position a cam 38, Fig. 3, thereon operates linkwork 39. 43, to swing supporting arms 37 below the castings 3. The frame is then brought into horizontal position, the mandrels withdrawn, and the castings removed over rails 46. The mandrels 12 may be used for clearing dross &c. from the inside of the pipe ends by expanding the jaws 13 by a pressure insufficient to hold the pipes when the flasks are rotated.
Patent GB-613802-A (GB)
Title: Improvements in locking devices for securing the lid to the body of a pressure cooker or other vessel
IPC: A47J27/08
Filed: 1946-12-20
Abstract: 613,802. Stud-and-socket fastenings. EASIWORK, Ltd., and EVANS, O. J. Dec. 20, 1946, No. 37556. [Class 44] [Also in Group XVIII] In a pressure cooker, autoclave, &c., the lid 10 is secured to the body part 15 by a splitspring ring 13 which is housed in, but normally projects from, a circumferential retaining groove 12 in, for example, the lid and is adapted, when the lid is applied to the body, to be engaged by a tapered part 17 of a flange 16 on the latter so as first to be forced into its retaining groove and, thereafter, to snap back into engagement with a shoulder or groove 18 on said flange. -One end of the split-ring is anchored to the lid by a screw 14 and the other end is formed with a projection 20 which, upon clockwise rotation of the lid relative to the body, will engage one of several indentations 21 in the flange 16 and effect expansion of the ring into its retaining groove to permit removal of the lid. Fluid-tightness between the lid and cover is secured by a rubber sealing ring 19 which projects from a groove in the lid. Specification 613,751, [Group XVIII], is referred to in the Provisional Specification.
Patent GB-1402562-A (GB)
Title: Installation including a data processor and a motor controlled by signals from the data processor
IPC: B23Q15/013
Filed: 1972-08-11
Abstract: 1402562 Numerical control of machine tools INDUSTRIELLE ELECTRONIK AGIE LOSONE B LOCARNO AG FUR 11 Aug 1972 [13 Aug 1971 25 April 1972] 37661/72 Heading G3N A D.C. motor, capable of running continuously and reversibly and suitable for positioning a machine tool or workpiece e.g. in an electroerosion system, is numerically controlled by an arrangement which forms the difference between an input representing required increments of motor movement and a feedback signal indicating the measured increments of motor movement. The stored difference is used to produce a motor control signal which causes the motor to operate as a stepping motor. As shown, a computer system 1 supplies pulses for driving a feed motor 20 connected to a machine carriage 22 by a shaft 221 which also drives an optical disc position transducer 21 connected to an indicator 23 which may supply feedback information to the system 1. Input pulses are received by way of line 111 to indicate required stepping of the motor and are stored in buffer 2. Similarly, direction-indicating pulses on line 112 are stored in a buffer 3, enabling multiplex operation with several drive motors. Detectors 4, 5 transmit the control pulses to a storage register 6 synchronized by clockpulses with signals from discriminators 7, 8 connected to the position transducer 21. The register 6 forms the difference between required and measured incremental movement and actuates, through an evaluation circuit 10, appropriate switches 13-16 to drive the motor 20 in the required direction. When the circuit 10 detects a zero output from the register 6, the energizing switches are opened, and overshoot is prevented by the application of a braking pulse by a circuit 9. A number of parallel feed motor control circuits may be connected to the outputs of buffers 2, 3, Fig. 2 (not shown), and signals from transducer 21 may form input pulses for further feed motor control circuits, Fig. 3 (not shown).
Patent GB-523312-A (GB)
Title: Improvements in cement and asbestos base mixtures used as plaster work, covering layers or walls
IPC: C04B28/26
Filed: 1938-12-30
Abstract: 523,312. Plasters; concretes. BILLEE, L. Dec. 30, 1938, No. 37886. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 13, 1939.] [Classes 22 and 70] A composition for plastering or covering the surfaces of metal, wood or masonry to protect them from corrosion consists of aluminous cement and asbestos mixed with a solution of sodium or potassium silicate. Filling materials such as chalk, sand, cork, pumice, vermiculite, emery or silicon carbide and lime may be added. The composition may be dried and hardened by treatment with gases of combustion at 150-300‹C., or may be saturated with bitumen, or casein or sodium fluosilicate may be added' to the silicate solution. The surface may be coated with a rubber, synthetic resin or cellulose derivative varnish which may contain cement and asbestos powder.
Patent GB-1269665-A (GB)
Title: 2-aminomethyl-indole derivatives and salts thereof
Inventor: YAMAMOTO HISAO
IPC: C07D243/14
Filed: 1969-04-23
Abstract: 1,269,665. Indoles. SUMITOMO CHEMICAL CO. Ltd. 23 April, 1969 [19 Aug., 1968; 9 Oct., 1968], No. 38170/71. Divided out of 1,269,664. Heading C2C. Indole derivatives are prepared by the following routes: (R 1  = H, halogen, C 1-4  alkyl or alkoxy, CF 3 ; R 2  = C 1-6  alkyl, aralkyl; R 3  = H, C 1-4  alkyl, aralkyl, cycloalkyl - alkyl, Ph, halogen-substituted phenyl; R 4  = H, C 1-4  alkyl; W = O, S; Y=H, OH), optionally followed by salt formation. The starting materials are prepared by standard methods. Compounds (I) possess central nervous system depressant activity.
Patent GB-365275-A (GB)
Title: Improvements in or relating to switch-plugs
IPC: H01R13/707
Filed: 1930-12-18
Abstract: 365,275. Plug-couplings. ARNOLD, C. L. and M. K. ELECTRIC, Ltd., Wakefield Street, Edmonton, London. Dec. 18, 1930, No. 38178. [Class 38 (i).] An insulating or insulated plate 3 of which two forms are shown in Figs. 1 and 4, for covering the fixed socket contacts is mounted on a base with a lost-motion connection as a pin and slot 1, 4, and is moved by and with the switch-arm 6 both to the " on " and " off " positions, spring- loading 8 being also provided, so that the protecting plate 3 is moved to the covering position, by the switch handle 6 direct in passing to the " on '' position with the plug not in engagement, or by the pull of the spring when the plug contacts are removed from engagement while the switch is " on." Specification 294,689, [Class 38 (i), Electric couplings &c.], and 364,797 are referred to in the Provisional Specification.
Patent GB-1006888-A (GB)
Title: Improvements in lubricating oil regeneration
Inventor: KOEBNER ADOLF
IPC: C10M175/00
Filed: 1963-10-01
Abstract: Used lubricating oils are regenerated by heating with an aqueous solution of an alkali-metal condensed phosphate and/or acid orthophosphate to at least 50 DEG  C. whereby the impurities are coagulated, and then separating the oily from the aqueous phase and from the impurities.  The oil may be extracted before or after the treatment with an aqueous alkali. A surface active ethoxylated amine of the formula:- <FORM:1006888/C4-C5/1> where R is a hydrocarbon group of at least 8 carbon atoms, x is 0 to 5, and (n + m) is 5 to 50, may be present during the heating. The treated oil may be further contacted with activated earths, and finally distilled.  The preferred phosphate is sodium tripolyphosphate. Specification 783,033 is referred to.
Patent GB-363510-A (GB)
Title: A foot attachment or fitting for use with ladders and steps
IPC: E06C7/44
Filed: 1930-12-23
Abstract: 363,510. Non-slipping devices for ladders. CRABTREE, J., 28, Spring Street, Great Harwood, near Blackburn. Dec. 23, 1930, No. 38657. [Class 20 (ii).] Relates to extensible foot attachments for ladders, of the kind comprising a bracket in which slides a bar, a pawl pivoted to the bracket being adapted to engage ratchet teeth on the bar to hold the latter in any required position of adjustment. According to the invention, the bracket is detachably mounted on the ladder side and consists of a housing connected by bolts to a lock-plate so as to clamp on to the ladder side at the foot thereof. In one construction, the attachment comprises a bracket 5, Figs. 1 and 2, which is secured to the ladder side L bv pivoted bolts 14 and a back-plate 16. The housing is slotted at the top and bottom to receive a slidable leg 6 provided with ratchet teeth 8 and a detachable pointed foot 7. Pivoted to the housing is a spring-actuated pawl 9 which is adapted to engage with the teeth 8 to hold the leg 6 in any required position of adjustment. The pawl has a lateral extension 11 whereby it may be actuated by the hand or foot. An arm 12 of an auxiliary pivoted lever, connected to the pawl by a link 13, may also be moved to actuate the pawl. An enlarged head 18 prevents the complete disengagement of the leg 6 from the housing. In a modification, the leg is constituted by a U - shaped member which is provided at the bend with teeth which grip the ground. The vertical arms of the leg are square in cross section and work in slots in a housing detachably secured to the ladder side. One arm has ratchet teeth with which engages a pawl pivoted to the housing.
Patent GB-1188558-A (GB)
Title: Fluid Logic Element
Inventor: PUTZKER WOLFGANG
IPC: F15C1/08
Filed: 1967-08-23
Abstract: 1,188,558. Bi-stable device. ELEKTRONISCHE RECHENMASCHINEN WISSENCHAFTLICHER INDUSTRIEBETRIEB KARL - MARX - STADT VEB. 23 Aug., 1967, No. 38740/67. Heading G4P. In a fluid bi-stable device having a main jet 3 and vented 7, 8 outputs 5, 6, fluid from the source 1 that feeds the power jet is bled off via adjustable restrictions 19 to mix with input control signals 13, 14 and then to pass to the vents. This arrangement enhances both stability, since in the absence of a control signal the bled fluid in passing to the vent applies suction to the deflected power jet, and amplification, since when a control signal is applied it merely has to deflect the stream bled from the main source and not the main jet.
Patent GB-1099538-A (GB)
Title: Improvements in or relating to optical mixing devices
Inventor: BOTCHERBY STEPHEN CHARLES LAUD
IPC: G02F2/00
Filed: 1965-09-10
Abstract: 1,099,538. Optical doppler radar. DECCA Ltd. Nov. 29, 1966 [Sept. 10, 1965], No. 38792/65. Heading H4D. [Also in Division G2] The Specification describes an optical doppler radar, in which means are provided for removing errors due to spurious signals in the output of a laser 20. The plane polarized light 20a from said laser 20 is directed on to a first polarization beam splitter 21 comprising two prisms, mounted back to back with a multilayer variable dielectric coating between. Said splitter splits the incident beam into components having orthogonal polarization planes, one component 34 being deflected by the splitter and the other 35 passing straight through. Component 34 has its plane of polarization turned through 90 degrees by passing through “ wave plate 24, before and after reflection by 22, and then passes unaltered through splitter 21. Component 35 also passes through a wave plate 25 twice, but is reflected by the moving target 23 and undergoes a doppler shift. The doppler shifted component is then deflected by splitter 21 so that the two components produce signals having orthogonal planes of polarization, one (34) containing spurious signals from the laser, and the other (35) exhibiting a doppler shift. A ¢ wave plate 26 shifts the polarization planes of the two signals such that they lie at + 45 and - 45 degrees to the plane of a second polarization beam splitter 10 on which they are incident. Each signal is split into equal components having orthogonal polarization planes, corresponding (coplanar) components from the two signals being passed to photo detector 17 or deflected to photo detector 18. In the outputs of the detectors the parts due to component 34, including the spurious signals, are in phase and equal, and so cancel out in difference amplifier 19, the parts due to component 35 however, are not in phase, due to the doppler shift, and so produce an output from the difference amplifier 19, which output can be used to activate a speed indicating meter 36.
Patent GB-815017-A (GB)
Title: Apparatus for treating hops or the like
IPC: C12C3/02
Filed: 1956-12-20
Abstract: 815,017. Drying hops &c. BROOKES, A. E. Dec. 10, 1957 [Dec. 20, 1956], No. 38855/56. Class 34(2) Hops from a conveyer 10, Fig. 1, pass down a shoot 11 on to a reciprocating conveyer 12 which feeds them on to the first of a series of perforate endless-band-conveyers 21-24 through which treating flued -sulphur dioxide through conveyer 21 and hot air from respective oil burners 33, 35, 38, through conveyers 22, 23, 24-is passed, the hot air passing through the conveyer 24 being constrained to flow through certain areas thereof in dependence upon the temperature of the air above the conveyer. A rotary device 39 evens out the hops across the conveyer 21, a baffle 29 directing any surplus to a conveyer 31 for return to the supply source. Sulphur dioxide is drawn by a fan 27 down through the conveyer 21 from inlet 26. The area of the conveyer 24 through which hot air from the burner 38 is passed depends upon the position of a barrier 39, Fig. 5, beneath the conveyer moved longitudinally thereof by an endless-chain 40 driven through pulleys &c. by a motor 41 which also moves, simultaneously with the barrier, a trolley 44 carrying a temperature responsive device 46. An electrical control circuit ensures that the barrier moves intermittently under a time switch 49, Fig. 7, and the device 46 between switches 53, 55, Figs. 5, 7, which when contacted respectively cut out the motor 41 and the motors 41, 58 (the latter actuates the conveyers 21-24). In a modified construction, the area between the runs of the conveyer 24, Fig. 6, is divided into cells each containing a valve 61. Each valve has an associated roller 63 which is spring- urged against pieces 65 secured to a chain which is driven by the motor 41 simultaneously with the device 46. A gap 66 is formed in the chain such that the rollers 63 may engage therein to open the valves 61 when the bottom chain run is moving to the right and to close the valves when the run is moving to the left. The time switch 49 is set so that whenever that it closes actuation of one of the valves 61 will result. To maintain a constant air pressure in the chamber 37 the air inlet valve 67 is automatically regulated to open as the valves 61 are opened and vice versa.
Patent GB-851858-A (GB)
Title: Manufacture of solid, stable diazonium compounds
IPC: A61C3/14
Filed: 1956-12-20
Abstract: The invention comprises solid stable diazonium compounds which correspond to the general formula:  <FORM:0851858/IV(b)/1> in which R represents hydrogen, a halogen atom or an alkyl or alkoxy group, R1 represents hydrogen or an alkyl or alkoxy group and N2X represents a diazonium chloride, diazonium sulphate, diazonium borofluoride or diazonium chloride-zinc chloride radical and a process for the preparation thereof wherein a para-amino azo compound of the formula: <FORM:0851858/IV(b)/2> where R and R1 have the meanings given above is diazotised in known manner and the diazonium compound is isolated in the form of its diazonium chloride, diazonium sulphate, diazonium borofluoride or diazonium chloridezinc chloride double salt. Representative of the specific products of which the preparation is described are zinc chloride-diazonium chloride double salts prepared from 4-amino-21:3-dichloro-41-nitro-1:1-azobenzene and 4-amino-3-chloro-3-nitro-1:1-azobenzene, the diazonium borofluoride prepared from 4-amino-3-chloro-41-nitro-21-methoxy-1:11 -azobenzene, the diazonium sulphates prepared from 4-amino-3-chloro-41nitro 1:11-azobenzene and 4-amino-2-methyl-5-chloro-31-nitro-1-11-azobenzene and 4-amino-3-methoxy-61-chloro-31-nitro-1:11-azo benzene. Para-amino-azo compounds employed as starting materials may be prepared by coupling diazotised o-, m- or p-nitraniline or halogen-, alkyl- or alkoxy substituted derivatives thereof with chloranilines which may be substituted by an alkyl or alkoxy group and do not contain a substituent in para-position to the amino group or their N-methane sulphonic acids, N-sulphonic acids or N-arylsulphonyl compounds and subsequently splitting off the methane sulphonic acid or aryl sulphonyl group.
Patent GB-891663-A (GB)
Title: Improvements relating to reciprocating cutters such as agricultural mowers, hedge trimmers, and saws
Inventor: BROWNRIDGE WALTER REGINALD
IPC: A01G3/04
Filed: 1959-11-17
Abstract: 891,663. Reaping machines. FEATHERSTONE AGRICULTURAL Ltd. Aug. 8, 1960 [Nov. 17, 1959], No. 38943/59. Class 6(3) [Also in Group XXIII] A support for a reciprocating cutter 11 is formed from readily detachable parts arranged to pivot about three mutually perpendicular axes and comprises a pair of parallel bars 1 detachably secured to a housing 2 which has a bore 2A for a driving shaft 9, a plate 4 to which the housing is pivoted by pin 3 and a further plate 6 pivoted to a fixture plate 8 about a vertical axis 7 to allow the lead of the cutter bar to be set. The plate 4 is secured to plate 6 so that it may be moved in its plane by virtue of bolts 5A engaging arcuate slots so that the cutter may be tilted. The bolt 8B shears when the cutter meets an obstruction and allows the whole mechanism to pivot upwardly about the centre bolt 8C of the plate 8. The cable 14 can be operated to lift the cutter bar.
Patent GB-1502356-A (GB)
Title: Dispensers for liquids
IPC: A61J1/00
Filed: 1975-09-25
Abstract: 1502356 Dispensing liquids by air-pressure SIEMENS AG 25 Sept 1975 [9 Oct 1974] 39417/75 Heading F1R Liquid is dispensed from a container 1 by airpressure generated by depressing a dish 4 secured to and communicating with a rising tube 5 which is secured to the diaphragm. Initial movement of the dish 4 causes the rim 7 to engage the diaphragm and thereby seal a hole 6 through the diaphragm from atmosphere. The diaphragm may be dished as shown or have an annular depression and be of reduced thickness towards the centre.
Patent GB-1164980-A (GB)
Title: Process for Depleting <283>PuO2 in <17>O and <18>O.
IPC: C01G56/00
Filed: 1968-08-19
Abstract: 1,164,980. Plutonium compounds. UNITED STATES ATOMIC ENERGY COMMISSION. 19 Aug., 1968 [6 Sept., 1967], No. 39466/68. Heading G6R. <SP>238</SP>PuO 2  depleted in <SP>17</SP>O and <SP>18</SP>O isotopes and having a low neutron emission rate is prepared by contacting <SP>238</SP>PuO 2  with steam depleted in the <SP>17</SP>O and <SP>18</SP>O isotopes, preferably at a temperature of 500-800‹ C. The <SP>238</SP>PuO 2  may be used as an isotopic energy source.
Patent GB-1038259-A (GB)
Title: Improvements relating to production of asphalt compositions
IPC: C10C3/00
Filed: 1964-09-28
Abstract: A low wax content naphthenic crude oil is distilled to obtain a topped crude, which is vacuum distilled to produce (a) a petroleum pitch and (b) a gas oil.  The gas oil is extracted with a selectively aromatics extracting solvent to produce (c) an aromatic-scan raffinate oil. The resulting aromatic-rich extract oil may be used as a carbon black feed-stock.  Pitch (a) may have R and B softening point of at least 150 DEG  F.  The selective solvent may be e.g. liquid SO2, furfural, and phenol.ALSO:An asphalt composition comprises (a) a petroleum pitch and (b) an aromatic-lean gas oil. The components may both be obtained from heavy naphthenic crude oil by conventional methods.  The proportion of oil (b) may be 15-35% by weight of the composition. The composition may have penetration 40-200 at 77 DEG  F., and R. and B. softening point of 80-140 DEG  F. Pitch (a) may have R. and B. point of at least 150 DEG  F.
Patent GB-989104-A (GB)
Title: Improvements in or relating to the sizing of yarn
Inventor: AUDAS FRANCIS GEORGE
IPC: D06M15/39
Filed: 1961-11-04
Abstract: Continuous or discontinuous multifilament or staple yarn, e.g "Terylene" (Registered Trade Mark) secondary cellulose acetate, cellulose triacetate, polyvinyl chloride and nylon yarn, is sized by the controlled application thereto of a particulate thermoplastic material having a predetermined particle size range which is dispersed in a liquid vehicle, and then heating and cooling the yarn to develop the particulate material in such a way as to cause localized binding of the yarn filaments or fibres together.  The size composition may be an aqueous dispersion of vinyl acetate or acrylic polymers or copolymers in which the particle size range is 0.1-2 microns.  Fabrics woven from yarns sized with these polymeric materials may be desized by treatment with ammonia or soda ash solutions.  The "tack" temperature of the particulate size may be reduced by incorporating a plasticizer, e.g. propyl alcohol, sulphated castor oils or benzene, into the composition.  The composition may also include polyacrylic acid and a lubricant.